Dowel.



0. E. EVANS. 'DOWEL APPLICATION FILED 00T. 30, 1912.

1,060,543., meute@ Apr. 29, 1913.

invirn CHARLES E. EVNS, OF WEEE, CALIFORNIA.

Dol/VEL.

weones. i

To aZZ whom t may concern:

Be it known that I, CHARLES E. Evans, a citizen of the United States,and a resident of Veed, in the county of Siskiyou and State ofCalifornia, have invented a new and Improved Dowel, of which thefollowing is a full, clear, and exact description. My invention has forits object to provide a dowel with cuts therein to 'form a wedge memberat the end ot the dowel, the wedge member being integral with the dowel,so that it may be inserted with the dowel into a hole in a member whichis to be secured by the dowel. lvhen the member to be secured at thebottom of the hole therein is driven against the end of the dowel, itwill force the wedge member into the adjacent portions of the dowel, andit will spread the dowel and force it laterally into the member to besecured at the sides of the hole.

Additional objects of my invention will appear in the following completespecification, in which the preferred form of the invention isdisclosed.

In the drawings similar characters of reference indicate correspondingparts in all the views, in whichv Figure 1 is a side elevation of thedowel; Fig. 2 is a sectional view of two members which are connected bythe dowel; and Figs. 3, t and 5 are views, showing modified forms of myinvention.

There is always difficulty in securing members together by dowels, sothat they will remain ser-nre under varying conditions, and this isespecially true when the dowel. Vis of wood and is inserted in a holedisposed at right angles to the grain of a wooden member in which thehole for the dowel is made. With my invention this difficulty isovercome, for the wedge or end member formed at the end of the dowelserves to spread the dowel, and force it into the member at the sides ofthe hole. The wedge member is made by making two ents in the dowel,`adjacent one of its ends, the ents being made at an angle to each other,and converging away from the said end of the dowel, with one of the cutsextending farther from the said end than the other ont, so that thewedge member will split down fronithe short catto the long cut, whichwill give thowedge member som': movement before'it strikes the adjacent:V-shaped portion of the dowel, which the wedge member will forceSpecification of Lett rs Patent.

Application filed october 30, 19152.

Patented Apr. 2 9, 1913.

serinnemswLSS z j into the member to he secured at the sides of the holemade therein, for receiving the dowel.

By referring to the drawings it will be seen that the dowel 5 has a cnt6 therein, and a cnt 7 therein, at eachl end, the cuts convergingawayfrom the ends 8, with the ents 7 extending farther fromv the saidendthan the cnt ti. The cuts 6 and 7 serve to form the wedge. members 9,which, when the dowel is inserted in the holes 10 ofthe members 11, willserve to force laterally the portions 12 of the dowel, so that they willhe driven into the sides of the hole 10, at the places 123.

ln using this dowel, the combined length of the holes 10 in 'the twomembers 11, should be shorter than the dowel 5, before it is inserted inthe said holes,.so that when the members 11 are pressed together by adoor clamp or Similar device, the' ends 14 at the holes 10 will pressaga-inst the ends 8 ot' the dowel 5, to break the portions 15 of thedowel 5, between the wedge members 9 and the central or main part ofthedowel. This will give the wedge members 9 some movement before they acton the portions 12 of the dowel 5, adjacent the cuts G and 7,-to

force the said portions 12 into the members `11 'at the places 13 shownin Fig. 2 of the drawings.

ln `Fig. 3 i show a modified form of my invention, in which the dowel 5ahas an -ohliqnely disposed'slot 1G, made therein, to form' the wedgemember 17. W'hen this form of the invention is used, the wedge member 17will be broken from the main part of the dowel 5 at the point 18, sothat the wedge member 17 will force the portion 18a of the dowel outwardor laterally, and into the side of the member at the hole, in which thedowel 5n is inserted. v

1n the form of the invention shown in Fig. 4. of the .drawings the dowel5b is "provided, with a longitudinal sloty 19, and surfaces 20, at itsand, which diverge from the said slot '19. With this form of theinvention these surfaces 2O will engage the member at vthe bottom ofthehole, in which the do'wlel .5b is inserted, and the member will forcethe dowel 5b outwardly at the surfaces 20, this being permitted by thelongitudinal Slot 19.

In the form of the invention shown in Fig. 5 of the drawings, there is ayV-shaped out 21, which is made inthe dowel pin 5c.

l dowel thereto.

Having thus described my invention, I claim as new and desire to secureby Let-ters Patent "1.- A dowel having a rcut therein at an angle to theaxis of the dowel, the cut being extended to make the vportion beyondthe ysaid cut subject to'fracture `upon the driving of the dowel, and toform 'a wedge member 'at one side of lthe cut for the purpose specied.

2. A dowel having -an endv partially severed, and subject 'to fracture,the end having a surface disposed at an angle to the side of the dowelnext to a surface on the adjacent portion of the dowel which is alsodisposed at an angle to the side of the dowel.4 j

, 3. A dowelV having two cuts therein, converging from one end ofthedowel, the said dowel being subject to fracture between the cuts, toform the said end of the .dowel into a Wedge member. 4 Y ,Y

4. A dowel having two cuts converging from onev end of the dowel, one oftl1e'.cutsk extending a greater distance from the said end of the dowelthan the other cut, the dowel being subject to fracture beyond the cuts.v

5. A dowelhaving two l-cuts therein, con- .verging from an'end of thedowel` one ofy the' cuts extending a greater distance from the sid endof the dowel than-the other cut, the dowel being subject to fracturellbeyond the c uts, to form the said end ot the dowel into a wedgemember.'

' G. In a' device of the class described, a

member having a partially severed end "with,

a wedge surface, vthe member 'being subject to fracture beyond itssevered portion to form the said end into a Wedge. Y A

In testimony whereof- I have signed my namet-o this specification in thepresence o two subscribing Witnesses. f f CHARLES E. EVANS.

Witnesses:

J. Gr. CAToHnrr, J. M. WHITE;l

